Ages 1–3
Autism resources for toddlers
If you have concerns about your toddler's development, the most important thing to know is this: you do not need a diagnosis to get help. Every state in the country offers free early intervention services for children birth to age 3, and those services begin based on developmental delay, not an autism label.
The research is clear that earlier support produces better outcomes across communication, social skills, and adaptive behavior. This guide walks through what to do right now, how the early intervention system works, what developmental signs to watch for, and how to keep moving forward during the wait.
What matters most at ages 1–3
The toddler years are the highest-leverage window for developmental support. Here is where to focus.
Request an early intervention evaluation immediately: no diagnosis required
Every U.S. state has a federally funded early intervention (EI) program for children birth to age 3, operating under Part C of the Individuals with Disabilities Education Act (IDEA). You can request a free developmental evaluation without a referral, without a diagnosis, and without any paperwork from a doctor. The single requirement is that your child shows signs of developmental delay or has a diagnosed condition associated with delay.
To start, call your state's EI program directly and say, "I want to refer my child for an early intervention evaluation." Federal law requires the evaluation to be completed within 45 days of your referral. If your child qualifies, services can begin even before the evaluation is complete. The longer you wait, the longer the queue; call today, even if you are not sure your child qualifies.
Start the Medicaid and ABA waitlist processes in parallel, not in sequence
If an autism diagnosis is possible or confirmed, begin Medicaid enrollment and ABA provider outreach at the same time as your EI evaluation, not afterward. ABA provider waitlists commonly run 3 to 12 months, and Medicaid enrollment can itself take several weeks. Families who wait until EI is sorted before starting Medicaid and ABA often add 6 to 12 months to an already long timeline.
Your pediatrician can write a referral letter and request a developmental evaluation before a formal diagnosis is in hand. Most ABA providers will accept a "suspected autism" referral for their waitlist. Every week you start earlier is a week less you wait on the other end.
The toddler years are uniquely important, and that is a reason to act, not panic
The phrase "early intervention" exists because the developing brain is more plastic, more adaptable, in the first three years than at any other point in life. Skills that require significant therapeutic effort at age 6 can often be established more readily at age 2. This is not about pushing a child or forcing development. It is about giving the brain the inputs it needs during the period when it is most receptive to them.
Research consistently shows that children who receive structured early support, particularly for communication and social engagement, show significantly better outcomes in language, cognitive function, and adaptive behavior compared to children who begin support later. The goal is to close developmental gaps before they compound.
There is a lot you can do at home right now, before any services begin
Parent-implemented strategies are among the most evidence-supported interventions for toddlers with autism. You do not need training to start. Core approaches include following your child's lead during play (rather than directing it), narrating your own and your child's actions throughout the day, creating predictable routines, getting down to your child's physical level during interactions, and responding immediately to any communication attempt, including pointing, reaching, vocalizing, or eye contact.
These are not supplementary to professional services; they are the foundation that makes professional services more effective. A child who has a parent consistently present and responsive during naturalistic interactions will make faster progress in therapy than one who does not.
Developmental signs to watch for by age
These are not diagnostic criteria; they are practical reference points. If your child is missing several of these skills at the relevant age, request a developmental evaluation. Do not wait for your next well-child visit if you have concerns.
12 months: expected skills
- ✓Responds to their name
- ✓Makes eye contact during interactions
- ✓Points or waves (gestures)
- ✓Babbles with varied sounds
- ✓Shows objects to share interest
When to act: No babbling, no pointing, or no response to name by 12 months are red flags that warrant an evaluation.
18 months: expected skills
- ✓Says at least 5–10 words
- ✓Points to show things they want or find interesting
- ✓Imitates simple actions
- ✓Shows understanding of simple words
- ✓Engages in simple pretend play
When to act: No single words by 16 months or no pointing by 18 months should prompt an immediate evaluation request.
24 months: expected skills
- ✓Uses two-word phrases ("more juice," "daddy go")
- ✓Refers to themselves by name or uses "me/mine"
- ✓Follows two-step directions
- ✓Engages in simple back-and-forth play
- ✓Shows interest in other children
When to act: No two-word phrases by 24 months, or any regression in language or social skills at any age, should be evaluated promptly.
Any regression, including loss of words, social engagement, or skills your child previously had, at any age is a significant sign that warrants same-week contact with your pediatrician and EI program.
How to access early intervention: step by step
The process is simpler than most families expect. Here is exactly what happens from your first call to services beginning.
Contact your state EI program directly
Call or email your state's Part C early intervention program and say, "I want to refer my child for an early intervention evaluation." You do not need a doctor's referral, though your pediatrician can also make the referral. Your state page on this site links to EI contacts for every state.
Complete the evaluation: at no cost to you
A team of specialists will evaluate your child's development across communication, motor skills, cognition, and social-emotional areas. Federal law requires this evaluation to be completed within 45 days of referral. You participate in the evaluation and provide input about your observations at home.
Develop the IFSP (Individualized Family Service Plan)
If your child qualifies, your family and the EI team create an IFSP together. This plan specifies which services your child will receive, how often, in what setting, and what goals are targeted. You are a co-author of this plan, not a recipient of it.
Services begin, often in your home
EI services are provided in "natural environments," typically your home or a childcare setting, rather than in a clinic. This is intentional: it makes skills more likely to generalize. Your involvement in sessions is expected and encouraged.
Prepare for the transition to school services at age 3
At least 90 days before your child's third birthday, your EI program should initiate transition planning with your school district. Do not wait for them to contact you; ask about the transition meeting proactively as early as age 2.5.
What early intervention services actually cover
Services are not one-size-fits-all; they are determined by your child's individual evaluation and documented in the IFSP.
Speech-language therapy
Addresses communication delays including expressive language (talking), receptive language (understanding), and alternative communication approaches.
Occupational therapy
Supports sensory processing, fine motor skills, feeding, self-care, and play skills. One of the most commonly provided EI services.
Developmental instruction
Structured coaching and activities targeting cognitive development, learning patterns, and school readiness skills.
Applied behavior analysis (ABA)
Available through EI in some states; in others, ABA is accessed separately through Medicaid or private insurance rather than through the EI system.
Physical therapy
Addresses gross motor development, including walking, balance, and coordination, when delays are present.
Family training and coaching
Teaches parents and caregivers how to support their child's development through everyday routines and activities at home.
Early intervention services are provided at no cost to families in most states. A small number of states may charge an income-based fee for some services, but cost is never a reason to decline an evaluation; the evaluation itself is always free.
In-depth guides for this stage
Early signs of autism
What to look for in the first two years and when to ask for an evaluation.
New autism diagnosis: next steps
A clear sequence for what to do in the weeks after a diagnosis.
Autism developmental milestones
How autism affects early development and which milestones matter most at each age.
Early intervention and autism
What EI covers, how to access it, and why starting early matters so much.
What to do while waiting for ABA
Practical strategies for the months between referral and first session.
Joint attention in autism
One of the earliest and most predictive skills to support in toddlers.
Imitation skills in autism
Why imitation is foundational and how to build it through daily interactions.
Navigating autism waitlists
How to move efficiently through the evaluation and provider pipeline.
Receptive language in autism
How toddlers understand language and what to watch for.
Autism speech milestones
What speech development looks like in autistic toddlers and when to act.
Free tools for toddler routines
Predictability reduces anxiety and builds compliance for toddlers. These tools help you put visual structure in place at home today; no account needed.
Frequently asked questions
Do I need an autism diagnosis to get early intervention services?
No. Early intervention eligibility is based on developmental delay or a diagnosed condition, not a specific autism diagnosis. If your child shows delays in communication, social interaction, or play, you can request a free evaluation from your state's EI program right now, without a referral, without a diagnosis, and without any upfront cost.
What services does early intervention include?
Early intervention services vary by child and state but typically include speech-language therapy, occupational therapy, physical therapy, developmental support, and in some states, applied behavior analysis (ABA). Services are provided in the home or a natural setting, not a clinic, and are tailored to each child's specific needs through an Individualized Family Service Plan (IFSP).
How long does it take to start early intervention after I request an evaluation?
Federal law under IDEA Part C requires that an initial evaluation be completed within 45 days of your referral. Services can begin before the evaluation is complete if the family and program agree. In practice, timelines vary by state and local program capacity, but requesting immediately rather than waiting for a formal diagnosis is almost always faster.
What are the early signs of autism in toddlers?
Key early signs in toddlers include limited eye contact, not responding to their name by 12 months, not pointing or waving by 12 months, no single words by 16 months, no two-word phrases by 24 months, loss of previously acquired language or social skills at any age, limited pretend play, repetitive movements, and difficulty with transitions. No single sign is diagnostic on its own; if you notice several, request a developmental evaluation.
What is the difference between early intervention and ABA therapy?
Early intervention is a federally funded umbrella program covering all developmental services for children birth to age 3. ABA (applied behavior analysis) is one specific type of therapy that may or may not be included in a child's early intervention plan, depending on state coverage and clinical recommendation. Many children receive ABA through private insurance or Medicaid in addition to, or instead of, EI services.
What happens when my child turns 3 and early intervention ends?
At age 3, early intervention services end and responsibility shifts to the local school district under IDEA Part B. Your school district is required to hold a transition meeting before your child's third birthday to determine school-based eligibility and services. If your child qualifies, they may receive an Individualized Education Program (IEP) and preschool special education services at no cost. The transition meeting should be scheduled no later than 90 days before the third birthday.
While you wait for services
Start building skills at home today
Stridesy creates a personalized home practice plan based on a short intake about your child's current skills. It includes short sessions, clear targets, and a reward system designed for toddlers, so the waiting time still moves your child forward.
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